In-line microwave warming apparatus
US5073167A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1987 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Jun 26, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3686
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microwave apparatus for warming of a liquid such as blood or IV fluids in which the warming occurs in-line by means of a microwave heating cavity having a source of microwave energy coupled thereto. A support element in the form of a bobbin forms an assembly with an IV tube wound about the bobbin. This tubing-bobbin assembly is inserted into the microwave heating cavity. A non-invasive, non-perturbing microwave temperature monitor is provided coupled to the microwave heating cavity for monitoring the temperature of liquid flowing in the IV tube. Controls are provided including a desired operating temperature selector for combining signals representative of, not only cavity temperature, but also inlet and outlet temperatures to control the power level of microwave energy delivered to the heating cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.